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<?php
///////////////////////////////////////////////////////////////////////////
// //
// NOTICE OF COPYRIGHT //
// //
// Moodle - Modular Object-Oriented Dynamic Learning Environment //
// http://moodle.org //
// //
// Copyright (C) 1999-onwards Moodle Pty Ltd http://moodle.com //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation; either version 2 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License for more details: //
// //
// http://www.gnu.org/copyleft/gpl.html //
// //
///////////////////////////////////////////////////////////////////////////
class data_field_menu extends data_field_base {
var $type = 'menu';
function display_add_field($recordid=0) {
global $DB, $OUTPUT;
if ($recordid){
$content = $DB->get_field('data_content', 'content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid));
$content = trim($content);
} else {
$content = '';
}
$str = '<div title="'.s($this->field->description).'">';
$rawoptions = explode("\n",$this->field->param1);
foreach ($rawoptions as $option) {
$option = trim($option);
if ($option) {
$options[$option] = $option;
}
}
$str .= html_writer::label(get_string('menuchoose', 'data'), 'field_'.$this->field->id, false, array('class' => 'accesshide'));
$str .= html_writer::select($options, 'field_'.$this->field->id, $content, array(''=>get_string('menuchoose', 'data')), array('id'=>'field_'.$this->field->id));
$str .= '</div>';
return $str;
}
function display_search_field($content = '') {
global $CFG, $DB;
$varcharcontent = $DB->sql_compare_text('content', 255);
$sql = "SELECT DISTINCT $varcharcontent AS content
FROM {data_content}
WHERE fieldid=? AND content IS NOT NULL";
$usedoptions = array();
if ($used = $DB->get_records_sql($sql, array($this->field->id))) {
foreach ($used as $data) {
$value = $data->content;
if ($value === '') {
continue;
}
$usedoptions[$value] = $value;
}
}
$options = array();
foreach (explode("\n",$this->field->param1) as $option) {
$option = trim($option);
if (!isset($usedoptions[$option])) {
continue;
}
$options[$option] = $option;
}
if (!$options) {
// oh, nothing to search for
return '';
}
$return = html_writer::label(get_string('namemenu', 'data'), 'menuf_'. $this->field->id, false, array('class' => 'accesshide'));
$return .= html_writer::select($options, 'f_'.$this->field->id, $content);
return $return;
}
function parse_search_field() {
return optional_param('f_'.$this->field->id, '', PARAM_NOTAGS);
}
function generate_sql($tablealias, $value) {
global $DB;
static $i=0;
$i++;
$name = "df_menu_$i";
$varcharcontent = $DB->sql_compare_text("{$tablealias}.content", 255);
return array(" ({$tablealias}.fieldid = {$this->field->id} AND $varcharcontent = :$name) ", array($name=>$value));
}
}
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